Senior AI Engineer - Prompt Engineering & Technical Support

About the role

Merkle, a dentsu company, is looking for a Senior AI Engineer in Lisbon to lead prompt engineering initiatives and provide technical support to business users. The role helps people across the organization use and get the most out of AI solutions, coaching them on how to craft effective prompts and implement AI tools in their workflows.

Key responsibilities

• Develop, refine and establish best practices for prompt engineering across the organization
• Coach business users in writing prompts and create guides, templates and resources
• Troubleshoot and optimize prompts for better results
• Provide hands-on technical support and run training sessions on AI tools and prompt best practices
• Help integrate AI tools into business workflows and document case studies
• Stay up to date with AI platforms and tools, evaluate new solutions, mentor junior staff and lead technical communities of practice

Required profile

• Minimum 5+ years of experience with AI, machine learning and/or LLM technologies
• Advanced expertise in prompt engineering and AI tool use
• Ability to explain complex AI concepts simply to non-technical users
• Experience in technical training and mentoring
• Preferred: advanced degree in Computer Science, AI or a related field, AI/ML certification, experience with AI model fine-tuning and knowledge of AI governance

What we offer

• 25 vacation days, 3 extra wellness days and volunteering days
• Health insurance (including family) and a mental health first aider and employee assistance programme
• Hybrid work with an expectation of 1 day per week in the office, agile hours and a digital nomad policy
• Latest IT tools, software-house environment and career development through Dentsu Academy
• Team events, employee discounts, referral bonus and free breakfast every second Wednesday